Door-bell.



PATENTED OCT. 16, 1906.

F. LBLLIS. DOOR BELL.

APPLIUATION FILED JAN. 25. 1905.

2 ATTOR'NEY.

THE mmms PETERS cm, wasnmonm, 0.1:.

out in the claims.

FREDERICK L. ELLIS OF MILLDALE,

CONNECTICUT.

DOOR-BELL.

Specification of Letters Patent.

Patented Oct. 16, 1906.

Anplication filed January 25, 1905. Serial No. 242,660.

To all whom, it may concern:

Be it known that I, FREDERICK L. ELLIs, a citizen of the United States, and a resident of Milldale, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Door-Bells, of which the following is a specification.

My invention relates to improvements in door-bells and the object of my invention is to construct a bell with its mechanism so grouped about the center of the bell that but few arts are required for o crating it.

Vl ith this end in view the invention consists in the novel construction and combination of parts, as will be hereinafter more particularly described, and specifically pointed To enable others to understand my invention, reference is had to the accompanying drawings, in which- Figure 1 re resents a central sectional view of the bell, anged base-plate, escutcheon, and broken sectional view of the one end of the push-rod. Fig. 2 is an interior plan view of the baselate and operative mechanism with the bell removed. Fig. 3 isa detail view of the reverse side of the escapementwheel, sectional view of the'push-rod, eX- treme lower end of one of the arms of the bell-crank lever that actuates the escapementwheel, also broken view ,of the bridge in which said Wheel is journaled. Fig. 4 is a modified detail construction of the escapcmentwheel. Fig. 5 is a detail upper plan view of the supporting-bridge. Fig. '6 is a detail plan view of a metal blank of which the bellsupporting post is formed. Fig. 7 is a detail view of the bell-supporting post. Fig. 8 is a detail side elevation of the escapement-wheel. Fig. 9 is a detail side elevation of the bridge.

The construction and operation are as follows:

1 represents a section of the door to which the metal base-plate 2 is secured.

3 is a bridge having the feet 3 secured to a recessed portion of the base-plate by the screws 4.

5 is the bell-supporting post, which I have shown, Fig. 6, as made of a single piece of sheet metal, although it could be made solid, if so desired. The wings 5 are folded over upon the body portion of the blank, with the holes 6, 7, and 8 alining with each other to furnish suflicient stock for threadin to engage the threaded stem 9 of the bell 10. (Shown at Fig. 1.) The wing 5 is bent I around (see also Figs. 1 and 7) to form a support for the bell-crank lever 11. The ends of the legs 5 of said post are provided with the tenons 12, adapted to be secured in the elongated holes 13 of the bridge 3. (Shown at Fig. 5.)

The bell-crank lever 11 has the arms 14 and 15. The former, or longer arm, extends down through the elongated slot 16, Fig. 5 of the bridge 3 and engages with the sides of the angularly-arranged slot 17 of the escapement-wheel 17 (shown at Fig. 3) for the purpose of actuating said wheel in the manner presently to be described.

18 is the push-rod, passing freely through the door 1, hole 19 of the base-plate 2, hole 20 of the bridge, and curved slot 21 of the escapement-wheel, the enlarged portion 18 of i said rod normally resting on the upper surface of the bridge. The end of the arm 15 of the bell-crank lever will rest on top of said enlarged portion of said push-rod.

22 is an escutcheon on the outside of the door and carries the push-button 23, with the forward end of its ush-wire 24 freely engaging with a hole in t 1e end of the push-rod, as shown at Fig. 1.

The escapement-wheel is located between the under side of the bridge 3 and the baseplate 2, with its shaft 25 journaled in the central hole 26 of the base plate (shown at Fig. 1) and the hole 27 of the bridge 3. (Shown at Fig. 5.) The pallet 28 of the escapementwheel is also j ournaled in a hole (not shown) in the base-plate 2and the hole 30 of the bridge 3. (Shown at Fig. 5.) 31 is the striking-hammer carried by said pallet.

32 is a retractile spring attached to the arm 14 of the bell-crank lever and is adapted to secure positive engagement of the other arm of said lever with the push-rod and also to maintain said rod in its normal position.

Actuating the push-rod 18 through the medium of the button 23 will actuate the bell-crank lever and rotate the escapementwheel in the direction of the arrows. This partial rotary movement of said wheel in one direction, combined with its return movement caused by the spring 32, will agitate the pallet 28 and cause the hammer to deliver a rapid succession of blows on the bell. The normal position of the escapement-wheel is established by the engagement of the pushrod with that end of the curved slot 21 which is farthest from the lower end ofthe of the bell-crank lever.

arm 15 for operating this wheel is done away with.

'said wheel as shown in shoulder a will serve the same purpose of esferred to.

' cured to and base-plate and located between the same and in axial alinement with the center of the bell, a bell-crank lever pivotally supported on the bell-post, a push-rod projecting through and operatively located within the circumference of the escapement-wheel, for the purpose set forth.

2. In a bell of the character described, an escapement-wheel axially located with respect to the center of the bell, a support for the bell, a push-rod operatively located within the periphery of said wheel, a double-arm lever pivotally supported on the bell-support, one arm adapted to be engaged by said rod, the other arm engaging the escapementwheel so that, through'the medium of said push-rod and lever, the escapement-wheel is rotated in one direction, a sprin to return said wheel to its normal position, for the purpose set forth.

3. In combination, a base-plate, a bridge secured thereto, an escapement-wheel journaled in said plate and bridge and located between the two, a hammer-carrying pallet engaging said wheel, a bell-supporting post made of a single piece of sheet metal and secured to said bridge, a bell mounted thereon,

As previously stated, the object of my invention is to construct a bell with as little mechanism and as few movin parts as possible. To do this effectivelyfl havelocated the escapement-wheel and bell-supporting post in axial alinement with the center of the bell, so that all intermediate mechanism Compactness of structure is further secured by extending the push-rod through the escapement-wheel, and thus enable it to be brought closer to the central construction of the bell. In other words, the push-rod occupies a position'inside of the circle described by the teeth of the escapement-wheel and operates at right angles to said wheel. Centralizing the escapement-wheel enables it to be directly operated by a bell-crank lever pivotally supported on the bell-supporting post, which further simplifies the general construction.

It is not necessary that the teeth of the escapement-wheel extend entirely around its' periphery, as it need contain only a sufficient number of teeth to secure the desired result. This is illustrated in the modified construction shown at Fig. 4. This construction enables the push-rod to occupy the same relaitive position with respect to the center of ment with each other,-a bell-crank lever p1votally supported on the bell-supporting post, a push-rod operatively located inside of the periphery of the escapement-wheel and adapted to engage one arm of the bell-crank lever and thus actuate said wheel through the medium of the other arm of said lever, a spring to bring all .of the moving parts to a normal position, for the purpose set forth.

Signed at Milldale, in the county of Hartford and State of Connecticut, this 7th day of January, A. D. 1905.

FREDERICK L. ELLIS.

the other views. In Fig. 4 the greater portion of the wheel is cut away, forming a toothed segment. The

tablishing the normal position of the wheel as one end of the curved slot 21, before re- Having thus described my invention, what I claim as new, and desire to secure by'Letters Patent, is

1. In a door-bell of the character described, a baseplate, a bridge secured thereto, a post secured to said bridge, a bell semounted on said post, an escapement-wheel journaled in said bridge and Witnesses:

E. 0. WILSON, EDMUND L. CURTIS.

said bell and escapement-wheel in axial aline' 

